JP2002369413A - Greenhouse effect gas exhaust suppressing type power generation/supply system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable efficient power generation control, which suppresses the quantity of exhaust of a greenhouse effect gas to the utmost using a personal computer, etc., and to enable effective use of the reduced greenhouse effect gas. SOLUTION: First power generation which utilizes solar energy is conducted using a solar panel 1, and power is supplied to users of this system. When surplus power is generated by the first generation, the surplus power is supplied to a hydrogen/oxygen generator 6 make the hydrogen/oxygen generator 6 operate, and hydrogen and oxygen are generated by electrolysis of water. These hydrogen and oxygen and stored in a hydrogen storage apparatus 7 and an oxygen storage apparatus 8 respectively. When a controller recognizes there is a shortage of quantity in the power supply of the first generation, the controller causes the hydrogen apparatus 7 and the oxygen apparatus 8 for supplying hydrogen and oxygen to a fuel cell power generating set 9, and causes the generating set 9 to conduct second power generation using the oxygen and hydrogen, and supplying of power is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to the emissions of greenhouse gases such as CO _2, SO _2, which causes global warming by minimizing enables power generation, yet was able to reduce the greenhouse The present invention relates to a greenhouse gas emission suppression type power generation / supply system that enables effective use of an effect gas amount.

[0002]

2. Description of the Related Art Conventionally, storage batteries have been used as a method of storing electric power. However, due to problems such as lead damage generated from the storage batteries, the weight of the storage batteries themselves, and restrictions on the storage time, the use of storage batteries has become widespread. It has not been used for business. At present, the development of superconducting technology that contributes to the effective use of power is still far from the practical range, and a technology that can store power easily and at low cost is desired.

In recent years, technical development of power generation systems utilizing natural energy such as solar cells and wind power has been progressing, and surplus power has been sold. However, during periods when the solar cells do not operate (eg, at night) or when wind power is generated. During a period when the generator does not operate (for example, calm), electricity must be purchased from a power company, and if surplus power during power generation can be accumulated, the amount of purchased electricity can be eliminated or reduced. .

[0004]

SUMMARY OF THE INVENTION Solar cells, wind power generation,
Alternatively, unlike a power generation system that involves general combustion such as thermal power generation, a power generation system that generates power using natural energy such as wave power does not emit greenhouse gases, but as described above, a period during which a solar cell or a wind power generator does not operate Must purchase electricity from power companies, and the entire power generation / supply cycle does not necessarily lead to a reduction in greenhouse gas emissions.

[0005] From the viewpoint of global environmental protection, reduction of greenhouse gas emissions has been accompanied by the recent introduction of environmental accounting and ISO, etc., and there has been a corporate-level greenhouse gas emission regulation movement, but a full-scale response has been taken. Is not yet reached. In addition, the trading of greenhouse gas emission rights specified in the Kyoto Protocol, which proposes an international greenhouse gas emission trading system, has attracted widespread attention as a new business.

Accordingly, the present invention has been made in view of the above-mentioned conventional problems,
A greenhouse that can be controlled using a computer or the like to efficiently operate electric power generation that minimizes greenhouse gas emissions, and that makes it possible to effectively use the reduced amount of greenhouse gas It is an object of the present invention to provide an electric power generation / supply system with a reduced effect gas emission.

[0007]

In order to achieve the above object, the first aspect of the present invention is a first power generating means for generating power by natural energy such as the sun, wind and wave power, and a first power generating means. Hydrogen generating means for generating hydrogen by electrolysis using electricity generated by the means, hydrogen storing means for storing hydrogen generated from the hydrogen generating means,
A second power generation unit that converts the power supplied from the hydrogen generation unit directly or by receiving hydrogen from the hydrogen storage unit, and monitors whether the power generation by the first power generation unit has reached a required supply amount Power monitoring means, and power generation control means for operating the second power generation means when the power monitoring means determines that the power supply is insufficient. With this configuration, natural energy is utilized. By storing the surplus of the power obtained as hydrogen as hydrogen and generating power using stored hydrogen when power generation using natural energy is insufficient, clean power generation becomes feasible. Greenhouse gas emissions can be minimized.

According to a second aspect of the present invention, in the greenhouse gas emission control type power generation / supply system according to the first aspect, a reduced greenhouse for managing a greenhouse gas amount that can be reduced in each power generation process. Means for managing the amount of greenhouse gases, means for managing the sale of greenhouse gas emissions rights to sell the reduced amount of greenhouse gases to the greenhouse gas emission market, and means for managing the profits obtained by selling the greenhouse gas emission rights. With this configuration, by selling greenhouse gas emission rights that reduce greenhouse gas emissions by power generation using natural energy and hydrogen, the price can be sold to users of this system. By giving back, the system management cost can be reduced.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a configuration diagram of an entire system for explaining an embodiment of a greenhouse gas emission suppression type power generation / supply system according to the present invention. Reference numeral 1 denotes a solar cell installed in a commercial building or a general house. A DC / AC converter that receives power from the solar panel 1 to perform DC / AC conversion, 3 denotes a power meter, a power generation amount adjustment meter, and a power distribution control unit. A power distribution control panel for controlling the amount of power, power distribution, and the like, 4 is an indoor distribution panel provided for each power user, and 5 is a power distribution control panel for each power user who operates by receiving power through the indoor distribution panel 4. Electrical equipment.

Reference numeral 6 denotes a hydrogen / oxygen generator which is operated by the power distribution control panel 3 to generate hydrogen and oxygen by electrolysis of water when it is determined that there is surplus power. A hydrogen storage device for storing hydrogen generated by the oxygen generator 6, an oxygen storage device 8 for storing oxygen generated by the hydrogen / oxygen generator 6, 9 directly from the hydrogen / oxygen generator 6, or A fuel cell power generation device as a second power generation means for generating power by supplying hydrogen and oxygen from the hydrogen storage device 7 or the oxygen storage device 8 (in this example, a fuel cell power generation device requiring hydrogen and oxygen In addition, 10 indicates that when the power distribution control panel 3 determines that there is surplus power, surplus power is sold to the power company 11 or the like, or power shortage occurs. Power company 11 when it is determined that
This is a power selling / purchasing device that controls the purchase of electric power from.

Reference numeral 12 denotes waste heat recovery and utilization which is used for heating water / air by utilizing heat generated in the fuel cell power generation device 9 or the like and distributed to general households, offices, factories 13 and the like. Device.

As the first power generating means, a device that generates power using natural energy, such as a wind power generator or a wave power generator, is used in addition to a solar panel including a solar cell using solar energy. can do. As the second power generation means, a fuel cell power generation device having a power generation function that does not generate a greenhouse gas is most preferable, and a power generation turbine that generates power by using hydrogen and oxygen as a combustion heat source is used. Can also be used.

FIG. 2 is a block diagram showing a configuration of a control system according to the present embodiment. Reference numeral 20 denotes a communication network such as the Internet or a bidirectional television system; A computer on the side of a power use company such as the power company 11 that is a partner for power sale / purchase; 22
Is a computer on the system side. The computer 22 on the system side exchanges data with the power distribution control panel 3 to control each unit as a whole, and further controls the drive of the hydrogen / oxygen generator 6. , And controls the hydrogen and oxygen storage / supply of the hydrogen storage device 7 and the oxygen storage device 8 and the drive control of the fuel cell power generation device 9.

Further, in FIG. 2, reference numeral 25 denotes a computer on the side of the greenhouse gas emission right management mechanism that buys and sells greenhouse gas emission rights, and shows the amount of greenhouse gas reduction that could be reduced by the power generation in this system. In order to sell through the Greenhouse Gas Emission Rights Management Organization as an effect gas emission right, the system side requires the normal power generation (thermal,
Software for calculating the amount of greenhouse gas reduction when certain power is generated, by converting the amount of greenhouse gas generated by electronic power generation and the amount of greenhouse gas generated when power is generated by this system into coefficients. It has a stored greenhouse gas management device 26.

The software of the greenhouse gas management device 26 is provided by a CPU in the computer 22 of the system.
(Central processing unit) 27 or stored in a server. The software stored in the CPU 27 is a power control management program in the power distribution control panel 3 or reduced in each power generation process in the system. A reduced greenhouse gas amount management program for calculating and managing the amount of greenhouse gas that can be performed as described above, a greenhouse gas emission right sale management program for selling the reduced greenhouse gas amount to the greenhouse gas emission right market, Includes a profit management program that manages the profits from selling greenhouse gas emissions credits.

The control of power generation / supply in the system by the CPU in the present embodiment will be described with reference to the flowchart shown in FIG. Normally, first power generation using natural energy such as the solar panel 1 is performed (S1), and power is supplied to the system user (S8). Here, when the CPU 27 recognizes that surplus power has been generated by the first power generation (YE in S2).
S), the surplus electric power is supplied to the hydrogen / oxygen generator 6 to operate the hydrogen / oxygen generator 6, and hydrogen and oxygen are generated by electrolysis of water (S3). And CPU2
7 stores the hydrogen and oxygen in the hydrogen storage device 7 and the oxygen storage device 8, respectively (S4). When the power monitoring function provided in the CPU 27 recognizes the shortage of the supply amount of the first power generation (YES in S5), the power generation control function provided in the CPU 27 operates to transfer the fuel cell from the hydrogen storage device 7 and the oxygen storage device 8 to the fuel cell. Hydrogen and oxygen are supplied to the power generation device 9 (S6), and the second power generation using hydrogen and oxygen is performed in the fuel cell power generation device 9 (S7) to supply the supplied power.

The power supply in the present system is performed as described above. However, if power shortage occurs due to the first power generation and the second power generation, the power supply from the power company 11 is received. Further, when the first power generation and the second power generation obtain an amount of power equal to or more than the power consumption in the system (YES in S9), the power company 11 outside the system
The power selling process is performed on the power supply (S10).

FIG. 4 is a flowchart relating to control of greenhouse gas emission right management in the system by the CPU according to the present embodiment. The power generation amount obtained by the first power generation and the second power generation are controlled by the CPU. Based on the obtained power generation amount (S11), the reduced greenhouse gas amount management program is executed to calculate the respective greenhouse gas reduction amounts A and B (S11).
12), data obtained by adding the reduction amounts A and B (A + B)
(S13), a greenhouse gas emission credit sales management program is executed, and an emission credit transaction is conducted via the greenhouse gas emission credit management mechanism (S14). Then, by executing the profit management program, the profit obtained by the emission credit trading is returned according to the share and the share of those who use the present system.

[0020]

As described above, according to the power generation / supply system with reduced greenhouse gas emission of the present invention, the surplus power obtained by using natural energy is stored as hydrogen, In the case of power generation using energy, when the amount of power is insufficient, it is possible to generate power using stored hydrogen, and therefore, clean power generation without generating greenhouse gases is performed, and greenhouse gas emissions are achieved. The amount can be minimized.

In addition, by selling greenhouse gas emission rights corresponding to the reduction of greenhouse gas emissions by power generation using natural energy and hydrogen, the price can be returned to users of the system, thereby achieving system management. Costs can be reduced.

[Brief description of the drawings]

FIG. 1 shows a greenhouse gas emission control type power generation /
Configuration diagram of the entire system for describing an embodiment of a supply system

FIG. 2 is a block diagram illustrating a configuration of a control system according to the present embodiment.

FIG. 3 is a flowchart according to control of power generation / supply in the system by a CPU according to the embodiment;

FIG. 4 is a flowchart relating to control of greenhouse gas emission right management in the present system by a CPU in the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Solar panel 3 Power distribution control panel 6 Hydrogen / oxygen generator 7 Hydrogen storage device 8 Oxygen storage device 9 Fuel cell power generation device 10 Power selling / purchasing device 20 Communication network 21 Computer of power use company 22 Computer of this system side 25 Computer on the side of GHG emission control mechanism 26 Greenhouse gas management device 27 CPU (Central Processing Unit)

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) H01L 31/04 H01M 8/00 Z H01M 8/00 H01L 31/04 K F term (Reference) 3H073 AA30 BB21 CC30 CD18 CD20 FF10 3H074 AA02 AA12 BB10 BB19 CC01 3H078 AA26 AA34 CC31 5F051 BA05 BA11 JA20 KA03 KA04

Claims (2)

[Claims] A first power generating means for generating power by natural energy such as the sun, wind, and wave power; a hydrogen generating means for generating hydrogen by electrolysis using electricity generated by the first power generating means; A hydrogen storage means for storing hydrogen generated from the hydrogen generation means, a second power generation means for converting the power directly from the hydrogen generation means or receiving hydrogen supplied from the hydrogen storage means into electric power,
Power monitoring means for monitoring whether or not power generation by the power generation means has reached a required supply amount; and power generation control means for operating the second power generation means when the power monitoring means determines that power supply is insufficient. And a power generation / supply system for suppressing greenhouse gas emissions. 2. A reduced greenhouse gas amount managing means for managing a greenhouse gas amount that can be reduced in each power generation process, and a greenhouse effect for selling the reduced greenhouse gas amount to a greenhouse gas emission credit market. 2. A greenhouse gas emission control type power generation / supply according to claim 1, further comprising a gas emission credit sale management means, and a profit management means for managing a profit obtained by selling the greenhouse gas emission credit. system.